AR100097A1 - GAS INJECTION DEVICE IN ELECTRIC ARC OVEN AND METHOD FOR ASSEMBLY OF A GAS INJECTION DEVICE - Google Patents

GAS INJECTION DEVICE IN ELECTRIC ARC OVEN AND METHOD FOR ASSEMBLY OF A GAS INJECTION DEVICE

Info

Publication number
AR100097A1
AR100097A1 ARP150101150A ARP150101150A AR100097A1 AR 100097 A1 AR100097 A1 AR 100097A1 AR P150101150 A ARP150101150 A AR P150101150A AR P150101150 A ARP150101150 A AR P150101150A AR 100097 A1 AR100097 A1 AR 100097A1
Authority
AR
Argentina
Prior art keywords
cylindrical shell
oven
gas injection
opening
shutter
Prior art date
Application number
ARP150101150A
Other languages
Spanish (es)
Original Assignee
Magnesita Refratários S/A
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Magnesita Refratários S/A filed Critical Magnesita Refratários S/A
Publication of AR100097A1 publication Critical patent/AR100097A1/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D3/00—Charging; Discharging; Manipulation of charge
    • F27D3/16—Introducing a fluid jet or current into the charge
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
    • C21C5/52—Manufacture of steel in electric furnaces
    • C21C5/5211—Manufacture of steel in electric furnaces in an alternating current [AC] electric arc furnace
    • C21C5/5217—Manufacture of steel in electric furnaces in an alternating current [AC] electric arc furnace equipped with burners or devices for injecting gas, i.e. oxygen, or pulverulent materials into the furnace
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/20—Recycling

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Furnace Charging Or Discharging (AREA)
  • Vertical, Hearth, Or Arc Furnaces (AREA)
  • Treatment Of Steel In Its Molten State (AREA)
  • Furnace Details (AREA)

Abstract

Se describe un dispositivo (2) para la inyección de gas en un horno de arco eléctrico (1), el dispositivo (2) está posicionado en una abertura en la parte inferior de un horno de arco eléctrico (1). El dispositivo (2) de la presente soluciona problemas del estado de la técnica permitiendo una mayor seguridad contra el derrame de metal fundido y está compuesto por una envuelta cilíndrica (3) y un obturador (4) insertado de modo concéntrico dentro de la envuelta cilíndrica (3). El obturador (4) está provisto en su parte inferior opuesta al lado del horno de un bloque de conexión (7). El bloque de conexión (7) contiene en su interior un núcleo de cobre (8). El dispositivo (2) presenta además un obturador secundario (16) posicionado debajo del bloque de conexión (7), una chapa de base (15) y una tapa (17). El método para el montaje consiste en soldado de la chapa base en la pared externa alrededor de la abertura del horno, posicionamiento de un primer segmento anular de la envuelta cilíndrica en la pared interna del lado interior de dicha abertura, posicionamiento de los demás segmentos anulares de la envuelta cilíndrica, llenado de argamasa entre la envuelta y el revestimiento interior del horno, posicionamiento por el lado externo del horno del obturador secundario sobre la tapa, inserción de un subobturador en la abertura del horno y encajado de la tapa en los pernos de la chapa de base, trabado de la tapa en forma de cuna y fijación de las grampas de seguridad, inserción dentro del horno del obturador en el agujero anular de la envuelta cilíndrica, inserción de masa de relleno entre el obturador y la envuelta, y conexión de mangueras de alimentación en los tubos de conexión de gas inerte adicional.A device (2) for gas injection in an electric arc furnace (1) is described, the device (2) is positioned in an opening in the bottom of an electric arc furnace (1). The device (2) of the present solves problems of the state of the art allowing greater security against the spillage of molten metal and is composed of a cylindrical shell (3) and a plug (4) inserted concentrically within the cylindrical shell (3). The shutter (4) is provided in its lower part opposite to the oven side of a connection block (7). The connection block (7) contains a copper core (8) inside. The device (2) also has a secondary shutter (16) positioned below the connection block (7), a base plate (15) and a cover (17). The method for mounting consists of welding the base plate on the outer wall around the oven opening, positioning a first annular segment of the cylindrical shell on the inner wall of the inner side of said opening, positioning the other annular segments of the cylindrical shell, filled with mortar between the shell and the inner lining of the furnace, positioning on the outer side of the furnace of the secondary shutter on the lid, insertion of a subobturator in the oven opening and fitting the lid on the bolts of the base plate, lock of the cradle-shaped cover and fixation of the safety clips, insertion into the obturator oven in the annular hole of the cylindrical shell, insertion of filling mass between the shutter and the shell, and connection of supply hoses in the additional inert gas connection tubes.

ARP150101150A 2014-07-16 2015-04-16 GAS INJECTION DEVICE IN ELECTRIC ARC OVEN AND METHOD FOR ASSEMBLY OF A GAS INJECTION DEVICE AR100097A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BR102014017541A BR102014017541A2 (en) 2014-07-16 2014-07-16 gas injection device in electric arc furnace and method for mounting a gas injection device

Publications (1)

Publication Number Publication Date
AR100097A1 true AR100097A1 (en) 2016-09-07

Family

ID=53283945

Family Applications (1)

Application Number Title Priority Date Filing Date
ARP150101150A AR100097A1 (en) 2014-07-16 2015-04-16 GAS INJECTION DEVICE IN ELECTRIC ARC OVEN AND METHOD FOR ASSEMBLY OF A GAS INJECTION DEVICE

Country Status (3)

Country Link
AR (1) AR100097A1 (en)
BR (1) BR102014017541A2 (en)
WO (1) WO2016008018A1 (en)

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2014999C (en) * 1989-04-24 1999-09-07 Kenneth William Bates Gas injector

Also Published As

Publication number Publication date
WO2016008018A1 (en) 2016-01-21
BR102014017541A2 (en) 2016-02-16

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